Eaton DH425FGKV Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH425FGKV
Quick Summary
Eaton heavy duty fusible safety switch is designed to provide reliable electrical isolation for demanding industrial and commercial power systems. Maintenance teams often struggle with hard-to-replace fuses and unclear blade visibility, leading to longer downtime. This UL Listed unit features a NEMA 1 painted-steel enclosure and a 240 V, 400 A rating that supports up to 50/125/50 HP configurations, making it suitable for heavy-duty applications. By combining rugged construction with easy cartridge fuse replacement, it helps facilities stay compliant and reduce unplanned outages. For engineers evaluating safety switch options, this model offers a turnkey protection solution for high-demand panels and motor control centers.
Product Information
Extended Description
DH425FGKV Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blades, 4 blade, 400 A, NEMA 1, Cartridge, Four-pole, Four-wire, 240 V, Max Hp: 50, 50/ 125/50 hp (1,3PH @Std/3PH @TD/250 Vdc), 600 V
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH425FGKV
UPC
786680182303
Product Length/Depth
46.12 in
Product Height
10.88 in
Product Width
25.38 in
Product Weight
116 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Catalog Notes
Enhanced Visible-Blade (No Window)
Enclosure
NEMA 1
Enclosure material
Painted steel
Fuse class provision
Cartridge
Fuse configuration
Fusible without neutral
Number Of Poles
Four-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
50, 50/ 125/50 hp (1,3PH @Std/3PH @TD/250 Vdc)
NEMA rating
NEMA 1
Voltage - max
600 V
Voltage rating
240V
Application
Heavy commercial and industrial
Series
K
Feature: 400 A amperage rating with four-pole, 240 V operation. Business Impact: Supports large motor loads and reduces electrical stress, improving uptime and code compliance in industrial power systems. Application: Suitable for heavy-duty control panels, motor control centers, and power distribution closets. Feature: Enhanced Visible-Blade (Catalog Notes) for quick status checks. Business Impact: Speeds maintenance and reduces inspection time, lowering labor costs and boosting safety. Application: Routine diagnostics and startup checks in harsh industrial environments. Feature: NEMA 1 enclosure with painted steel construction. Business Impact: Robust protection against dust and incidental contact, extending service life in demanding facilities. Application: Indoor heavy commercial/industrial installations. Feature: Cartridge fuse configuration with fusible without neutral. Business Impact: Simplifies fuse maintenance, lowers spare parts inventory, and supports fast resets after faults. Application: Centralized power distribution and motor protection. Feature: UL Listed certification and four-wire, four-pole design. Business Impact: Assures compliance with safety standards and ensures reliable three-phase or single-phase protection. Application: Industrial safety switch installations across process lines and conveyors.
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FAQs
For proper installation, plan for the four-pole, four-wire configuration in a NEMA 1 painted steel enclosure. The unit measures 46.12 in deep, 25.38 in wide, and 10.88 in high, with a weight of 116 lb, ensuring adequate clearance and support within industrial panels. Use correct mounting hardware and follow lockout/tagout procedures during fuse replacement.
Yes. The DH425FGKV is UL Listed and designed as a four-pole, four-wire device rated for 400 A, 240 V, with a maximum 600 V rating, supporting both 1-phase standard and 3-phase time-delayed configurations. Its HP rating up to 50/125/50 hp makes it appropriate for motor control centers and heavy-duty industrial panels.
Maintenance centers on periodic fuse replacement using the cartridge fuse configuration and leveraging the enhanced visible-blade feature for quick blade status checks. Plan for routine inspections, confirm the enclosure remains clean and dry, and consult Eaton’s warranty terms (one year from installation or 18 months from shipment) for service timelines and coverage.
This switch is well-suited for heavy commercial and industrial power distribution, motor control centers, and safety shutdowns in demanding environments. It supports up to 400 A at 240 V with four poles, and up to 50, 50/125/50 HP configurations. Its rugged NEMA 1 enclosure and cartridge fuse configuration support reliable, code-compliant protection.
It addresses safety and downtime concerns with UL Listed certification, a sturdy NEMA 1 enclosure, and a robust four-pole design that supports high-duty operation. The cartridge fuse system simplifies maintenance and reduces spare parts, while enhanced blade visibility lowers inspection time and accelerates fault diagnosis, contributing to lower lifecycle costs.